Dewooling machine



June 28, 1938. OLLY HAL -2,122,006

DEWOOLING MACHINE Filed June 22, 1937 Patented June 28, 1938 UNITEDESTATES I PATENT; OFFICE l 1 if I 4 2,122,006 if? v DEWOOLING MACHINE. calm Jolly, ,Coogee, John was Archibald, Dulwich Hill, and Herbert Jacob' Solomon, "i sydneyl' New South Wales, Australia I I ap lication June 22, 1937, Serial No. 149,750 -1 Claims. (01. 149-25 This invention relates to improved means for removing'wool or hair from skins which have been treated with'depilatory solutions or the i like, and has been devised' to lower the time and to obtain'greater efficiency of operation, and to a unit to a classing table.

In this invention we ap'rovide a series of skincarrying-boards, suitably secured at spaced intervals to a travelling member, and'adapted to be drawn vertically'in succession at any desired rate between a pair of rotating pulling rollers.

deliver automatically the whole of the'fleece as,

These rollers are .fitted' with. series of resilient wool or hair pulling'st'rips, and each skin is carried by itsboard so that'the 'wool or hair is exposed on each side of the board. I I

In the accompanying drawing Which illustrates one form of the invention:

Fig. 1 is a perspective-view ofa complete mahin l Fig. 2 is a front elevation of a-pulling roller; Fig. 3 is an enlarged perspective view of portion of the strips on the pulling'rollers.

L A stout metal framing I 0, suitably reinforced and stifiened,'is fitted with sprocket wheels I I for endless chains [2 l2, which are adapted to be driven at any desi ed speed by means of a motor I3, preferably ted with reduction bear- "Uniformly spaced skin-carrying flatlboards M are pivoted at their upper ends to the'chains l2 and at all stages of travel lie in vertical planes.

- Bearings on the framing l0 carry a'pair of parallel oppositely disposed, wool or hair pulling, rollers I5, 16 the outer faces of which -may be provided with a rubber or resilient sheath and are vfitted with sets of oppositely wound helical strips Il, l8 of soft rubber or the like resilient material. As shown in Fig. 3 each strip is of approximately triangular cross section. By means of set screws l9 these rollers may be adjustably spaced from each other to permit of variation of pressure of the strips l1, l8 on the faces of the skin passing between them.,

I Above each of the pulling rollers is mounted in may be surfaced with canvas or be fitted with soft rubber or other resilient material, and are adjusted relatively to each other by means of set screws 2|.

j 55 Adjustable belt conveyors22, 23 are positioned cost of "operation, to obviate damage to the pelt,

" delivers the load to a discharging conveyor-26 and thence to a classing or sorting .table on the right hand end of the machine. The conveyor 23 is adapted to deliver itsloadgdirectly to the discharging conveyor. The fleece is thus delivered to the classing or sorting table as a unit and in the 15 same relativeposition as it was on the skin.

In operation; as applied to'sheep skins which have been treated with depilatory material, an operator places the skin on the top rail of a board l4 so that portion of the'skin' hangs downwardly 20 on each side of the'boardwith the wool exposed. The chains lland'the rollers l5, [6 are set in motion and each board in succession travels upwardly between the pulling rollers.

When the wool contacts with the rollersthe 5 apices of the strips l1, l8 exert a squeezing pressure and draw the fibres from their follicles in such a manner that the'hyaline or glassy layer is not removed from the pelt thus tending to imspread of the staple. "From the conveyors 22, 23

the two parts of the fleece are delivered to the discharging conveyor 26 during the intervals between successive entry of boards M to the gap, below the rollers l5, l6.

Provided that suitable depilatory means have been used to loosen the fibres'and hairs in their follicles, the operation of de-wooling or de-hairing, as carried outby this machine, is hygienic, 45

the skins do not require painting or sweating, no

noxious. fumes are produced or liberated, the

spinning qualities of the wool are retained, and

the pelts are in improved condition for tanning.

We claim: i 1. A dewooling machine comprising a pair of parallel oppositely disposed pulling rollers pro-.

vided with helical strips of rubber'on the surface of each of said rollers, spaced boards each adapted to carry a skin with the wool exposed on each 5 driven means adapted todraw each of said boards, in succession vertically between said pulling roll ers and between said pinching rollers.'.l-:'-

I 3. A dewooling machine comprising a pair of parallel oppositely disposed jand oppositely rotat able wool-pulling rollers provided with series of.

helical rubber strips on the surface of each roller,

spaced boards each adapted-to! carry a skin-with:

the wool exposed on each side of the board, power driven mechanism pivotally attached to the upper ends of the boards and adapted to draw the boards in succession vertically between saidrollers, and belt conveyors adapted to receive wool from said pulling rollers.

. 4. A dewooling -machine comprising a pair/of parallel oppositely disposed and oppositely rotatable wool-pulling'rollers provided with series of helical rubber strips on the surface of each roller, spacedboards each adapted to carry a skin with the wool exposed on each sideof the board, power driven mechanism pivotally connected with the upper ends of the boards andadapted to draw the boards in succession vertically between said rollers, a belt conveyor adapted to receive and discharge woolpulled from one side of each board, and an'independent beltconveyor adapted to receive and discharge wool pulled from the other side of each board; 5 p

5. A dewoolingmachi-ne comprising a'pair of parallel oppositely disposed: and oppositely rotatable wool-pulling rollers provided with series of helical rubber strips on thefsUrface of each roller, spaced boards each adapted .to carry a skin with the wool exposed on each side of the board, power driven mechanism adapted to draw the boards in succession vertically between the pulling rollers, a belt conveyor adapted to receive and discharge wool pulled from one side of each board, an independent belt conveyor adapted to receive and discharge wool pulled from the other side of each board, and a belt conveyor adapted to receive the whole of the wool pulled from both sides of the boards.

I v6. A devvooling machine comprising a pair of parallel oppositely disposed and oppositely rotatable Wool-pulling rollers provided with series of helical rubber stripson the surface of each roller, f spaced boards each adapted to carry a skin with ,the wool'e'xpc'sed' on each side of the board, power driven mechanism adapted to draw the boards in succession vertically between the said rollers, a

belt conveyor adapted to receive and discharge wool pulled from one side of a board, an independent belt conveyor adapted to receive and dischargewool pulled from the other side of the board, a, beltyconveyor' .adapted to spread the staple received from; the pulling rollers, anda belt conveyor adapted to: deliver as a unit the fleece pulled from the skin on the board.

'7'. A dewooling machine comprising a pair of parallel oppositely disposedand' oppositely rotate able wool-pulling rollerseach provided with series'of helical rubber strips on its surface, spaced boardseachaclapted to carry askin with the wool exposed on each sideoi the board, power driven mechanisrnadapted to-draw the boards in succession vertically betweenthe pulling rollers, belt conveyors; adapted to receive and discharge the wool pulled from each side of the board, and a belt conveyor adapted to deliver as a unit the pulled woolin-thesame relative order as on the original skin. I I

' .COLIN JOLLY. 1

JOHN WILSON ARCI-IIBALD. HERBERT JACOB SOLOMON. 

